inserted: function()

in src/Clients/Web/winjs/js/winjs.js [50451:50541]
87 lines of code
24 McCabe index (conditional complexity)

                inserted: function (element, prev, next, animateInsertion) {
                    this._writeProfilerMark("WinJS.UI.FlipView:inserted,info");
                    var curr = this._prevMarker,
                        passedCurrent = false,
                        elementSuccessfullyPlaced = false;

                    if (animateInsertion) {
                        this._createAnimationRecord(uniqueID(element), null);
                        this._getAnimationRecord(element).inserted = true;
                    }

                    if (!prev) {
                        if (!next) {
                            this._currentPage.setElement(element);
                        } else {
                            while (curr.next !== this._prevMarker && curr.elementUniqueID !== uniqueID(next)) {
                                if (curr === this._currentPage) {
                                    passedCurrent = true;
                                }
                                curr = curr.next;
                            }

                            if (curr.elementUniqueID === uniqueID(next) && curr !== this._prevMarker) {
                                curr.prev.setElement(element);
                                elementSuccessfullyPlaced = true;
                            } else {
                                this._releaseElementIfNotAnimated(element);
                            }
                        }
                    } else {
                        do {
                            if (curr === this._currentPage) {
                                passedCurrent = true;
                            }
                            if (curr.elementUniqueID === uniqueID(prev)) {
                                elementSuccessfullyPlaced = true;
                                var pageShifted = curr,
                                    lastElementMoved = element,
                                    lastElementMovedUniqueID = uniqueID(element),
                                    temp;
                                if (passedCurrent) {
                                    while (pageShifted.next !== this._prevMarker) {
                                        temp = pageShifted.next.element;
                                        lastElementMovedUniqueID = pageShifted.next.elementUniqueID;
                                        pageShifted.next.setElement(lastElementMoved, true);
                                        if (!lastElementMoved && lastElementMovedUniqueID) {
                                            // Shift the uniqueID of the page manually since its element is being animated.
                                            // This page  will not contain the element until the animation completes.
                                            pageShifted.next.elementUniqueID = lastElementMovedUniqueID;
                                        }
                                        lastElementMoved = temp;
                                        pageShifted = pageShifted.next;
                                    }
                                } else {
                                    if (curr.elementUniqueID === curr.next.elementUniqueID && curr.elementUniqueID) {
                                        pageShifted = curr.next;
                                    }
                                    while (pageShifted.next !== this._prevMarker) {
                                        temp = pageShifted.element;
                                        lastElementMovedUniqueID = pageShifted.elementUniqueID;
                                        pageShifted.setElement(lastElementMoved, true);
                                        if (!lastElementMoved && lastElementMovedUniqueID) {
                                            // Shift the uniqueID of the page manually since its element is being animated.
                                            // This page  will not contain the element until the animation completes.
                                            pageShifted.elementUniqueID = lastElementMovedUniqueID;
                                        }
                                        lastElementMoved = temp;
                                        pageShifted = pageShifted.prev;
                                    }
                                }
                                if (lastElementMoved) {
                                    var reused = false;
                                    this._forEachPage(function (curr) {
                                        if (uniqueID(lastElementMoved) === curr.elementUniqueID) {
                                            reused = true;
                                            return true;
                                        }
                                    });
                                    if (!reused) {
                                        this._releaseElementIfNotAnimated(lastElementMoved);
                                    }
                                }
                                break;
                            }
                            curr = curr.next;
                        } while (curr !== this._prevMarker);
                    }

                    this._getAnimationRecord(element).successfullyMoved = elementSuccessfullyPlaced;
                    this._setButtonStates();
                },